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Patent Searching and Data


Title:
OPTICAL PRODUCT AND OPTICAL FILTER INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2019/066398
Kind Code:
A3
Abstract:
The present invention relates to an optical product, and an optical filter and an imaging device including the same. The optical product comprises: a near-infrared absorption glass substrate including a divalent copper ion as a chromatic ingredient; and a pigment dispersion layer formed on one surface or both surfaces of the near-infrared absorption glass substrate and having a near-infrared absorption pigment and an ultraviolet absorption pigment dispersed across the resin matrix thereof. Provided with a first and a second transmission blocking band, the optical product has the advantage of allowing the fabrication of an excellent near-infrared blocking filter that can effectively block light in near-infrared and ultraviolet bands and does not permit a difference in color sense with the change of incident angles.

Inventors:
CHOI, Jeong Og (106-204, 15 Gwangpyeong-ro 19-gil,Gangnam-gu, Seoul, 06355, KR)
KIM, Joo Young (404-101, 14 Ingye-ro 189beon-gil, Yeongtong-gu,Suwon-si, Gyeonggi-do, 16536, KR)
YANG, Seon Ho (2F 115, Sadang-ro 27-gilDongjak-gu, Seoul, 07001, KR)
LEE, Min Soo (203-1504, 53 Wanggok-ro,Uiwang-si, Gyeonggi-do, 16064, KR)
CHOI, Yong Won (121-2602, 1462-14 Deogyeong-daero, Yeongtong-gu,Suwon-si, Gyeonggi-do, 16685, KR)
Application Number:
KR2018/011206
Publication Date:
May 23, 2019
Filing Date:
September 21, 2018
Export Citation:
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Assignee:
LMS CO.,LTD (53-73, Jinwisandan-ro Jinwi-myeon,Pyeongtaek-si, Gyeonggi-do, 17709, KR)
International Classes:
G02B5/20; C08K5/3417; C09B57/00; G02B5/22; G03B11/00
Foreign References:
JP6103152B22017-03-29
KR20170054322A2017-05-17
KR20140069130A2014-06-09
JP2017146506A2017-08-24
KR20140088559A2014-07-10
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